Positioning method, user equipment and network device

Abstract

A positioning method, a user equipment and a network device provided by the present disclosure realize positioning of the user equipment by combining proximity based services, where the network device receives a location service request for a target UE; if it is determined that the target UE supports a proximity assisted positioning function and the network device determines to trigger an assisted positioning process for the target UE, the network device obtains self-positioning information of the target UE and assisted positioning information, and performs positioning processing on the target UE according to the self-positioning information of the target UE and the assisted positioning information to obtain a positioning result, where the assisted positioning information is information obtained by a proximal UE performing assisted positioning measurement on the target UE. Compared with the prior art, the positioning technology provided by the present disclosure takes the assisted positioning information into account during positioning processing, and its positioning capability is stronger and the accuracy is higher.

1 . A positioning method, wherein the positioning method is applied to a terminal side, and the method comprises:
 sending location request;   receiving a first assistance request message sent by a location management function (LMF), wherein the first assistance request message is configured to request a target user equipment (UE) to provide assisted positioning information;   sending a first response message to the location management function (LMF), wherein the first response message comprises self-positioning information of the target UE and the assisted positioning information;   obtaining a positioning result, wherein the positioning result is obtained by the location management function (LMF) performing positioning processing on the target UE according to the first response message.   
     
     
         2 . The positioning method according to  claim 1 , wherein the assisted positioning information comprises: location information of a proximal UE and/or relative location information of the proximal UE and the target UE. 
     
     
         3 . The positioning method according to  claim 1 , further comprising:
 executing a proximity discovery process, and taking a UE supporting a proximity assisted positioning function discovered by the proximity discovery process as a proximal UE.   
     
     
         4 . The positioning method according to  claim 1 , further comprising:
 receiving a retransmission message sent by the location management function (LMF), wherein the retransmission message is sent by the location management function (LMF) when determining that the assisted positioning information does not meet an assisted positioning condition;   re-executing a proximity discovery process according to the retransmission message to determine a new proximal UE, requesting the new proximal UE to perform assisted positioning measurement on the target UE, and obtaining new assisted positioning information returned by the new proximal UE;   sending a retransmission response message to the location management function (LMF), wherein the retransmission response message comprises the new assisted positioning information and the self-positioning information of the target UE.   
     
     
         5 . The positioning method according to  claim 1 , further comprising:
 sending registration information to a network side, wherein the registration information comprises a first proximity assisted positioning parameter, and the first proximity assisted positioning parameter is configured to represent that the target UE supports a proximity assisted positioning function.   
     
     
         6 . The positioning method according to  claim 1 , wherein the location request carries a second proximity assisted positioning parameter, and the second proximity assisted positioning parameter is configured to represent that the target UE supports a proximity assisted positioning function. 
     
     
         7 . A positioning method, wherein the positioning method is applied to a network side, and the method comprises:
 receiving location request to locate a target UE;   if it is determined that the target UE supports a proximity assisted positioning function and it is determined to trigger an assisted positioning process for the target UE, obtaining self-positioning information of the target UE and assisted positioning information, wherein the assisted positioning information is information obtained by a proximal UE performing assisted positioning measurement on the target UE;   performing positioning processing on the target UE according to the self-positioning information of the target UE and the assisted positioning information to obtain a positioning result.   
     
     
         8 . The positioning method according to  claim 7 , wherein obtaining the self-positioning information of the target UE and the assisted positioning information comprises:
 sending a first assistance request message to the target UE, wherein the first assistance request message is configured to request the target UE to report the assisted positioning information;   receiving a first response message returned by the target UE, wherein the first response message comprises the self-positioning information of the target UE and the assisted positioning information.   
     
     
         9 . The positioning method according to  claim 7 , wherein obtaining the self-positioning information of the target UE and the assisted positioning information comprises:
 sending a second assistance request message to the target UE, wherein the second assistance request message is configured to request the target UE to report identification information of the proximal UE;   receiving a second response message returned by the target UE, wherein the second response message comprises the self-positioning information of the target UE and the identification information of the proximal UE.   
     
     
         10 . The positioning method according to  claim 9 , further comprising:
 sending a third assistance request message to the proximal UE according to the identification information, wherein the third assistance request message is configured to request the proximal UE to perform assisted positioning measurement on the target UE;   receiving the assisted positioning information of the target UE returned by the proximal UE.   
     
     
         11 . The positioning method according to  claim 8 , wherein performing the positioning processing on the target UE according to the self-positioning information of the target UE and the assisted positioning information comprises:
 if the assisted positioning information does not meet an assisted positioning condition, sending a retransmission message to the target UE, wherein the retransmission message is configured to request the target UE to re-execute a proximity discovery process.   
     
     
         12 . The positioning method according to  claim 8 , wherein determining that the target UE supports the proximity assisted positioning function comprises:
 determining that the target UE supports the proximity assisted positioning function, according to registration information of the target UE.   
     
     
         13 . The positioning method according to  claim 8 , wherein determining that the target UE supports the proximity assisted positioning function comprises:
 determining that the target UE supports the proximity assisted positioning function, according to user subscription information of the target UE.   
     
     
         14 . The positioning method according to  claim 8 , wherein determining that the target UE supports the proximity assisted positioning function comprises:
 determining that the target UE supports the proximity assisted positioning function, according to the location request.   
     
     
         15 . The positioning method according to  claim 8 , wherein determining to trigger the assisted positioning process for the target UE comprises:
 if it is determined that a current network meet at least one condition of following conditions, triggering the assisted positioning process for the target UE;   wherein the at least one condition comprises:   a current network environment of the target UE conforms to a network environment of assisted positioning;   the location request carries location requirement information for assisted positioning processing.   
     
     
         16 . The positioning method according to  claim 8 , further comprising:
 if it is determined that the target UE meets one of following conditions, sending a report request of the self-positioning information to the target UE;   performing the positioning processing on the target UE according to the self-positioning information returned by the target UE to obtain the positioning result of the target UE, wherein the conditions comprise:   the target UE does not support the proximity assisted positioning function;   it is determined not to trigger the assisted positioning process for the target UE;   a current network device does not support the proximity assisted positioning function.   
     
     
         17 . A user equipment, wherein the user equipment comprises a memory, a transceiver, and a processor;
 the memory is configured to store a computer program; the transceiver is configured to transceive information under a control of the processor; the processor is configured to read the computer program in the memory and execute the following operations:   sending location request;   receiving a first assistance request message sent by a location management function (LMF), wherein the first assistance request message is configured to request a target UE to provide assisted positioning information;   sending a first response message to the location management function (LMF), wherein the first response message comprises self-positioning information of the target UE and the assisted positioning information;   obtaining a positioning result, wherein the positioning result is obtained by the location management function (LMF) performing positioning processing on the target UE according to the first response message.   
     
     
         18 - 21 . (canceled) 
     
     
         22 . A network device, wherein the network device comprises a memory, a transceiver, and a processor;
 the memory is configured to store a computer program; the transceiver is configured to transceive information under a control of the processor; the processor is configured to read the computer program in the memory and execute the positioning method according to  claim 7 .   
     
     
         23 - 45 . (canceled) 
     
     
         46 . A non-transitory processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is configured to cause a processor to execute the positioning method according to  claim 1 . 
     
     
         47 . (canceled) 
     
     
         48 . A non-transitory processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is configured to cause a processor to execute the positioning method according to  claim 7 .